Spectrum Technologies Field Scout 2266FS Product Manual
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Spectrum Technologies Field Scout 2266FS Product Manual

Direct soil ec meter
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Direct Soil EC Meter
PRODUCT MANUAL
Item #'s
2266FS, 2266FSTP

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Summary of Contents for Spectrum Technologies Field Scout 2266FS

  • Page 1 Direct Soil EC Meter PRODUCT MANUAL Item #’s 2266FS, 2266FSTP...
  • Page 2 Field Scout Soil & Water EC Meter. Please read this manual thoroughly before using your meter. For customer support or to place an order call Spectrum Technologies, Inc. 800-248-8873 or (815) 436-4440 between 7:30 am and 5:30 PM CST FAX at 815-436-4460 info@specmeters.com.
  • Page 3 Introduction Congratulations on the purchase of your FieldScout Direct Soil EC Meter. This instrument has been specif- ically designed for direct measurement of salts in soil media as well as water or nutrient solutions. This man- ual describes how to use your meter and keep it work- ing accurately for many years.
  • Page 4 EC Probe Electrical conductivity (EC) important parameter in evaluating irrigation water and fertilizer solutions. Crops can be damaged if irrigated with water with a high conductivity. The quality of irrigation water has been classified into 5 separate categories (See Appendix 2, p. 19). EC is also an indicator of the strength of fertilizer solutions.
  • Page 5 Wait until the meter reading stabilizes before withdrawing probe. Taking several measurements will allow a representative average to be computed. Important: Do not touch the sensor tip with your fingers. The oils on the skin will affect the probe’s measurement accuracy. Sensor Electrode Pair...

  • Page 6: Meter Settings

    Meter Settings Accessing the Setup Screen Power on the tester. Press the MENU/▼ button. The meter will briefly display the Key Info screen before transitioning to the Setup screen. Follow the instructions for the specific parameter that is to be modified.
  • Page 7 Backlight The backlight increases screen readability in low- light conditions. 1. Press MENU/▼ to scroll to Settings option. 2. Press HOLD. The display shows TDS factor and Backlight. 3. Use the MENU/▼ button to scroll to the Backlight option. 4. Press HOLD. The options are ON and OFF. 5.
  • Page 8 Temperature Coefficient 1. Press MENU/▼ to scroll to Temp Set option. 2. Press HOLD. The display shows options 3. Press MENU/▼ to select Temp Coeff. Press HOLD. 4. Press HOLD to select Temp Coeff or MENU/▼ to adjust the Temp Coeff. 5.

  • Page 9: Taking Measurements

    Taking Measurements The procedure below illustrates the general process for taking pH readings. When taking measurements in liquids, ensure that the tip is fully immersed and not touching the side of the container. Stir and let the reading stabilize. Information on measuring other media are given in subsequent sections.

  • Page 10: Direct Soil Ec Readings

    Direct Soil EC Readings Greenhouse Soils The stainless steel probe of the Field Scout Soil & Water EC Meter can be inserted directly into the soil. By taking measurements at different soil depths, you can determine where the fertilizer is concentrated in the soil.

  • Page 11: Sme Measurement

    SME Measurement Saturated Media Extract (SME) Measurements Growth media used in most greenhouse operations is high in organic material and processed materials and low in mineral soil. These materials are easier to handle, are well aerated and have good moisture- holding properties, but have limited ability to retain nutrients.

  • Page 12: Probe Calibration

    Probe Calibration Conductivity, TDS, or Salinity For best results, periodic calibration with an accurate standard is recommended prior to measurement. Prior to calibration, the tip of the probe should be cleaned with alcohol. The tester will retain one calibration value in each mode (conductivity, TDS, salinity) when the instrument is powered off.
  • Page 13 6. Press HOLD to accept the auto conductivity standard and finish the calibration. 7. Display returns to Measurement window. Manual Calibration When the conductivity reading is outside the calibration range of the automatic conductivity standards or when TDS or salinity is used, the tester will require manual adjustment.
  • Page 14 Sensor/Tip Replacement If the probe cannot be calibrated, or if it does not hold the calibration for a reasonable amount of time, the probe or tip must be replaced. The 24” T-handle probe comes with a replaceable tip (item 2266). With these probes, the cable and shaft do not need to be replaced.
  • Page 15 Meter Housing White nut Black nut Strain relief Larger plastic assembly/O-ring socket Probe plug II. Attaching a direct-insert probe 1. If you are connecting an 8” probe, slide the white nut over the probe and down the black cable. Skip to step 4. 2.

  • Page 16: Battery Replacement

    Battery Replacement The meter uses four AAA 1.5 V batteries. 1. To remove the battery cover, see Figure 1. Clear the front catch then the back catch, before sliding the cover off. 2. To remove the battery plate, push the center tab towards the front of the tester as shown in Figure 2.

  • Page 17: Specifications

    Specifications Conductivity Range 0.0 to 200.0 μS, 200 to 2000 μS, 2.00 to 20.00 mS Resolution 0.1 μS, 1 μS, 0.01 mS Relative accuracy ±1% full scale Normalization temp. 25.0ºC (77ºF) Temperature co-efficient 0.0% to 10.0% Calibration points Up to 3 points Range 0.0 to 100.0 ppm, 100 to 1000 ppm, 0.10 to 10.00 ppt (TDS Factor 0.5)
  • Page 18 Appendix 1 Preferred EC Values for Selected Plants Plant EC (mS/cm) Asparagus 1.5 - 2.0 Watermelon 1.5 - 2.5 Carrot 1.5 - 2.0 Cabbage 2.0 - 3.0 Cucumber 2.0 - 3.0 Crysanthemum 1.5 - 2.5 Onion 1.5 - 2.0 Bean 2.0 - 2.5 Strawberry 2.0 - 2.5...
  • Page 19 Recommended EC Value (mS/cm) 1 to 2 Pour thru Poinsettia during 2.0 - 3.0 0.85 - 1.25 2.8 - 4.1 weeks 2-12. Pansies during 0.25 - 1.5 0.1 - 0.6 0.35 - 2.1 active growth. Geraniumus during 1.6 - 2.4 0.65 - 1.0 2.2 - 3.3 active growth.
  • Page 20 Appendix 3 Interpreting EC Readings From Turf Grass When taking direct-insert EC readings in turf grass with the Field Scout meter, it is often helpful to con- vert the measurement to the equivalent Saturated Media Extract (SME) value. This conversion will vary for different soils.
  • Page 21 Moderately Moderately Sensitive Sensitive Tolerant Tolerant < 3 mS/cm 3 - 6 mS/cm 6 - 10 mS/cm >10 mS/cm Annual Annual Bent cv. Bluegrass Ryegrass Seaside Alkaligrass Colonial Chewings Perennial Bluegrass Fescue Ryegrass Bermudagrass Kentucky Creeping Seashore Bluegrass Bentgrass Tall Fescue Paspalum Rough St.
  • Page 22 Appendix 4 Greenhouse Media Classification of Greenhouse Media Electrical Conductivity (mS/cm) Comments 1 to 2 1 to 5 Very low levels. Indicates 0 - .74 0 - .25 0 - .12 very low nutrient status. Suitable range for seedlings .75 - 1.99 .25 - .75 .12 - .35 and salt sensitive plants.
  • Page 23 Interpreting EC Readings from Soilless Media The FieldScout EC meter allows for quick and easy readings of salinity in a greenhouse container. The following equations give an approximation of how a direct-insert reading relates to more conventional soil sampling techniques. The FieldScout reading is designated by the variable FS.
  • Page 24 RMA number or for the loss of the package by any shipping company. This equipment has been manufactured for Spectrum Technologies, Inc. 3600 Thayer Court Aurora, IL 60504 USA The Manufacturer’s DECLARATION OF CONFORMITY is on file at the above...

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Field scout 2266fstp

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